K2 battery switch
Locked
 
|
Greetings!
I am finishing up a new K2 with internal battery and would like to use a DPDT switch in place of the supplied one so that I can either connect or bypass the in-line diode and resistor in the battery wiring depending on what power supply I am using. Has anyone found a substitute DPDT switch that matches the footprint of the stock one? Thanks 73, N7NSD Norm _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
|
|
Didn't DK3RED do something similar some time ago?
Take a look at http://www.ac6rm.net/mailarchive/html/elecraft-list/2002-06/msg00829.html. He used instead the on-off switch of the K2 with its DPDT function to bypass the in-line diode for charging of the internal battery when the K2 is turned off. Unfortunately I cannot get his homepage to work right now so I cannot find the details. 73 Sverre LA3ZA http://www.qslnet.de/la3za/ -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Norm Havercroft Sent: 20. oktober 2005 02:17 To: [hidden email] Subject: [Elecraft] K2 battery switch Greetings! I am finishing up a new K2 with internal battery and would like to use a DPDT switch in place of the supplied one so that I can either connect or bypass the in-line diode and resistor in the battery wiring depending on what power supply I am using. Has anyone found a substitute DPDT switch that matches the footprint of the stock one? Thanks 73, N7NSD Norm _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
|
|
Hello Norm and Sverre,
THERE ARE switches with the same footprint and the same outfit like the original one. I have found one here in Germany by Conrad Electronic. Put the number 708330 in the input area named "Artikelnr.-Suche" on the top of the main page by www.conrad.de and press enter. Picture: www1.conrad.de/xl/7000_7999/7000/7080/7083/708330_BB_00_FB.EPS.jpg Type: Marquardt 4021.0801 Think the supplier will also send you a DPDT to the USA, but the cost for s&h from Europe to USA are high. Norm, I think you will find also a DPDT in your country. Maybe Radio Shack sells these ones. I did something similar like Norm want to do. But I have bypassed the polyswitch and not the in-line diode and the resistor. The diode and the resistor are substituted totally in my K2 with a wire. You DON'T replace the original SPDT for my modification. I'm so sorry, but at the time I have some trouble with my internet provider, so I have no access to my webspace. No, I have payed my bill (grin). I try to describe my modification. Please read the posted mail (TNX Sverre) from me and look at the K2 schematic. The both lowest pins on S1 (Power) have in the original no contact to the rest of the circuit. The first wire goes from the lowest pin on the left side of S1 to + on P3 (Aux). The second wire goes from the lowest pin on the right side of S1 to the connection of C196 and D10 (+ pin of J3 - the supply jack). -- 72/73 de Ingo, DK3RED Don't forget: the fun is the power! [hidden email] www.dk3red.homepage.t-online.de (out of order) DL-QRP-AG #824 www.dl-qrp-ag.de QRP ARCI #11295 www.qrparci.org DARC #2360404 www.darc.de Sverre Holm wrote: > Didn't DK3RED do something similar some time ago? > > Take a look at > http://www.ac6rm.net/mailarchive/html/elecraft-list/2002-06/msg00829.html. > He used instead the on-off switch of the K2 with its DPDT function to bypass > the in-line diode for charging of the internal battery when the K2 is turned > off. Unfortunately I cannot get his homepage to work right now so I cannot > find the details. > > 73 > > Sverre > LA3ZA > http://www.qslnet.de/la3za/ > > > > -----Original Message----- > Sent: 20. oktober 2005 02:17 > Subject: [Elecraft] K2 battery switch > > Greetings! > > I am finishing up a new K2 with internal battery and would like to use a > DPDT switch in place of the supplied one so that I can either connect or > bypass the in-line diode and resistor in the battery wiring depending on > what power supply I am using. Has anyone found a substitute DPDT switch > that matches the footprint of the stock one? Thanks > > 73, > N7NSD > Norm _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
|
|
In reply to this post by Sverre Holm-2
Hello Norm and Sverre,
in the mean time I have kicked my internet provider powerful in the (beep/censored) and have now (ooh surprise!) again access to my webspace. For more details about the modification of my K2 please click www.dk3red.homepage.t-online.de/en/s6.htm#trx6 -- 72/73 de Ingo, DK3RED Don't forget: the fun is the power! [hidden email] www.dk3red.homepage.t-online.de DL-QRP-AG #824 www.dl-qrp-ag.de QRP ARCI #11295 www.qrparci.org DARC #2360404 www.darc.de _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |